Mar 22
Soft Coral Colony: Fully Extended and Glowing
A soft coral colony that has settled into a healthy reef tank can enter a dramatic display: fully extended polyps, thin tentacles unfurled, and a gentle bioluminescent glow that becomes most noticeable under actinic or blue-spectrum lighting. This moment, often captured by hobbyists and photographers, signals a thriving colony and balanced water conditions. What causes the glow and extension? Soft corals rely on a combination of light, water chemistry, and nutrient availability. Under strong ye... Read more »
